smellsofbikes
silver_and_deming_drills
Junk found in Granddad's garage, part III: enormous collection of silver&deming drillbits. There's a 1/4" bit across them for scale. One is almost an inch in diameter. I don't know what the slow-helix triple-flute drill up at the top right is: I've never seen anything like it. It might've been intended for drilling phenolic. It has no sharp cutting edges anywhere on it.
silver_and_deming_drills
Junk found in Granddad's garage, part III: enormous collection of silver&deming drillbits. There's a 1/4" bit across them for scale. One is almost an inch in diameter. I don't know what the slow-helix triple-flute drill up at the top right is: I've never seen anything like it. It might've been intended for drilling phenolic. It has no sharp cutting edges anywhere on it.